Nissan is facing a rash of complaints about automatic transmission failures in the company's trucks and SUVs, according to The New York Times. Certain 2005-2010 Frontier, Pathfinder and Xterra models may have an issue with their radiators which could cause coolant to mix with the automatic transmission fluid. That's not supposed to happen, and it could cause premature failure. Nissan, meanwhile, has extended its warranty coverage on the radiators and any component damaged as a result of the faul